* WHAT. High wave action, strong currents, and dangerous swimming conditions expected for Memorial Day. Piers may be heavily swamped by waves. * WHERE. Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN. From Monday morning through Monday evening. * IMPACTS. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

* WHAT. West winds 10 to 20 knots with gusts up to 30 knots and waves 3 to 5 feet expected. * WHERE. St Joseph to Manistee. * WHEN. From 8 AM to 8 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

At 346 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Churubusco to near Huntertown to near New Haven. Movement was northeast at 35 mph. HAZARD. Wind gusts up to 50 mph. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include. Fort Wayne, New Haven, Auburn, Kendallville, Garrett, Butler, Huntertown, Avilla, Waterloo, Hamilton, Woodburn, Rome City, Grabill, St. Joe, Leo-cedarville, Swan, Concord, Ashley, Newville, and Hudson. This includes the following highways. Interstate 469 between mile markers 16 and 30. Interstate 69 in Indiana between mile markers 310 and 340.

At 336 PM EDT, Doppler radar was tracking a strong thunderstorm near Middlebury, or 9 miles west of Lagrange, moving north at 40 mph. HAZARD. Wind gusts up to 50 mph. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include. Sturgis, Three Rivers, Lagrange, Middlebury, Constantine, White Pigeon, Centreville, Colon, Topeka, Nottawa, Scott, Flowerfield, Fawn River, Leonidas, Mendon, Burr Oak, Shipshewana, Honeyville, Klinger Lake, and Fishers Lake. This includes Interstate 80 in Indiana between mile markers 104 and 127.

* WHAT. High wave action, strong currents, and dangerous swimming conditions expected for Memorial Day. Piers may be heavily swamped by waves. * WHERE. Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN. From Monday morning through Monday evening. * IMPACTS. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

* WHAT. Northwest winds 10 to 20 knots with gusts up to 30 knots and waves 3 to 5 feet expected. * WHERE. St Joseph to Manistee. * WHEN. From 8 AM to 8 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.